Fishing tool



May zo, 1924. r1,494,880

K V. P. AUSBROOKS FISHING TOOL Filed sept. 2e, 1922,

Vllley Ejwbf'gg/INI/ENTOR.

' \ATTORNEY.

Patented May 20, 1924.

FISHING 'roo-L.

Application ledseptember 26,1922. Serial No. 590,698'.

To all'whom t may concern:

B'e it known that I, VILLEY P. AUsRooKs,

-a citizen of the United States, residi-ng at Oilton, in the county of'Greek and' State of Oklahoma, have invented certain new and usefulImprovements lin Fishing Tools,'of which the following is aspecification.-

This' invention relates to fishing lt'ools designed primarily for use'in connection with the separated or detached elements of oilwelldrilling equipment,bnt it is to be understood that the tool 'can' beemployed for any purposes wherein it is found'applicable, and' theinvention has for its object to p rovide a tool of such classi., in amanner as hereinafter set forti-i, with ,means for not only straddlringthe detached'element, of the equipment, which is to be removed, but alsofor guiding said element to a plurality of clam ing members to beengaged and secure yclamped thereby with ythe body portion of the tool,so as to prevent the separa'- Ation of the secured element from the toollwhen the latter is withdrawn from the well.

. throughout the several views-:4-l

Flrrther objects ofthe invention are to provide afishing tool for'theApurpose set forth which is simple in' its construction and arrangement,stro-ng, durable, compact, efficient and convenient in its use, readilyset up and comparatively inexpensive.

lith the foregoing and other objects -inview, the invention consists ofthe novel construction, combination and arrangement of parts a-shereinafter more specifically described and illustrated in theaccompanying drawings, wherein is shown an embodiment of the invention,but it is to be understood that changes, variations and modificationscan 'be resorted to which come within the vsco-pe of the claims hereuntoappended.

In the drawings wherein like reference characters denote -correspondingparts Figure 1 Yis an elevation of a iishi-ng tool in accordance withthis invention.

Figure 2 is a vertical sectional view broken away, f y l Figure 3 is asection on line 3 3, Figure 2,

Figure el is a sect-ion on line del, Figure' 1. A -is'hing tool inaccordance with this invention comprises a hollow tubular :body portion5, which is `longitudinally slotted as at 6, and providedin'terniediate'its endsKA with a Atransversely .extendlngbolt 7 .'"whichconstitutes' a stopfor the vupper end of an expansib'le element 8, thelatter being inthe form of a. coiledv spring and arranged `within thechamber 9', formed by the bodyportion 5. The wall of the chamber 9:, atthe lower portion thereof is tapered as indicated at 10, and whichtapered portion is arranged above the lower terminus of the body por#tion 5, and provides a shifting means for a plurality of clampingmembers to abe presently.referred to. Q V

The upper terminus of the body portion 5,l

is contracted as at 11, and formed'with a polygonal extension 12, thelatter terminatin ing in Ia coneshaped peripherally threaded shank 13,for the" purpose of coupling the tool tof a lineI sec-tion 14, asindicated in dotted lines Figure 1. The lower terminus of the bodyportion' 5, is vformed of a substantiallyl wide lower edge. Formed`integralwith the outer portion kof said edgegat diametrical'lyopposedg'points, isa pair of elongated oppositely disposed outwardlyinclined spaced'guide 4members 15, 16, and

which are of greater length `than the body portion 5. Each of thegu'idemembers, at any point throughout 'its length, is arcuate inltransverse section and each 'of said members gradually increase yinwidth fthrOughou-t from said lower edge'.` The outwardly incli'ning ofthe members l5, 16, in opposite directions lwith respect to 'each other,'and the gradual increasing in width of each member from 'its uppertowards its lower end rl'iroughout, provides what maybe termed acatching space for the object lwhich is to bc caught and 'with saidcatching space gradually lincreasing in Iarea throughout from the upperto the 'lowerends of said members. "As each ofthe members '15, 16, isforme-d integral with the outerportion 'of the lower edge,thesaidmembers are'of 'a 'thickness materially less than thewidth ofsaidY lower edge.A By setting up the guide members in a manner wherethey will'be extended in opposite directions with respect "to eachother, that is tosay, `at an outward inclination, the openings formedbetween the side edges of said yn'iembers gradually vin- `v crease inwidth from said lower vedgevofthe body' portion 5 to the lower end ofthe lsaid members 15, 16. The setting up of the catching space ofgradually increasing'area so that it will'enlarge in a direction towardsthe lower ends of the members 15, 16, enables articles of varying sizesto' Abe caught within the space to 'be engaged by 'ay gripping orclamping element to be presently referred to.

The openingsof gradually increasingwidth formed between the members 15,16, permit of the entry of objects of varying sizes lnto the catchingspace.

Arranged within the chamber 9, formed by the body portion 5, is a seriesof clamping members as shown three in number, and which are indicated bythe reference characters 17, 18 and 19, and each of these clampingmembers is quadrant shaped in cross section. The upper portion of theouterr periphery of each of the clamping members is cylindrical asindicated at 20, andv the lower portion of the outer periphery of eachof said clamping members is beveled asat 21. kThe inner periphery ofeach of the clamping members is serrated `or toothed as at 22, toprovide a gripping face. The upper rportion of each of the grippingmembers is set up in such a manner so that there will be a space, asindicated ,at v23, between the clamping `members `and that portion ofthe wall of the chamber 9, above the tapered portion 10, of said wall.That pa-rt of theperiphery of each of the clamping members which isbeveled rides against the tapered portion 10, ofthe wall of the chamber9. The normal position of the clamping members, is as shown in Figure 2of the drawings, and said `clamping memfbers are maintained in suchposition by` the action of the expansible. member 8, which bears againsta cylindrical plunger 24, the latter engaging the upper edges of theclamping members. `The clamping members are adapted to be shiftedupwardly against the action of the. expansible element or member 8, andwhen shifted upwardly within the chamber 9, can 'open relatively to eachother, so that when the body rportion 5, is

moved upwardly, the tapered portion 10, of the wall of the chamber 9,riding against the beveled periphery of the clamping members, will shiftthese latter toward each 'other and maintain them in such position.

vIt will be assumed that the guide members 15, 16, `have straddled adetached ele- ',ment of the oil'well equipment, the said 'element isthen directed to a vertical position, as the tool rvmoves downwardly,and the end of said element will eventually enter Athe-lower end of thechamber 9, which abuts against the clamping members, forcing the sameupwardly against `the action of the springS, and with the upper end ofthe element entering between the clamping members, due to the fact thatwhen the -clamping members are forced upwardly they will beseparatedwith respect to each other, and kafter the detachedelement is positloned1n the manner as stated, that is to say with its upper end positionedbetween the clamping members, the body portion 5,

is shifted upwardly, which causes the tapered portion 10, of the wall ofthe chamber From the foregoing description taken in 'draw- .i

connectionA with the accompanying ings, a construction of fishingtool isset up which provides for the autor'natic gripping of a detached elementwithin the well, so that the element can be removed therefrom,

and will be understood, that the construction is not limited tothedetails shown and described, as modifications withrespectto the elementsof the tool can be made without departingfrom the spirit of theinvention.

What I vclaim is 1.a fishing i001 Comprising' a 'honbw cylindrical bodyportionhaving a vsubstantially `wide lower edge, means in connectionwith the inner face of vsaid body portion to provide in the latter aspring controlledff gripping element for coupling a caught object withsaid bodyportion, anda pair of elongated oppositelyfdisposed outwardlyinclined` spaced :arcuate guide members integral with the outerportionjof saidiedge at diametrically opposed points and disposedthroughout at a permanent inclina- `tion with respect tosaid bodyportion, each of said guide members being o fless thickness than. thewidth of said wide lower edge and gradually increasing inwidth from theupper to the lower terminus. thereof, each of said guide members further'being arcuate in cross section atanygpoint throughout its lengththereby providing an object catching space gradually increasing in areathroughout from the upper to the lower terminiof said members, and saidmembers so disposed' to provide between the side edgesthereof width'from the upper to the lower: termini of the members and providingentrances for said catching space.

'2. A fishing tool comprising v,a Vhollow opposed openings graduallyincreasing in cylindrical body having means therein to provide a springcontrolled grippingv element for coupling a caught objectfwitlr saidbody portion, and pair of elongated' oppositely disposedoutwardlyinclined :spaced arcuateguidey members'integral with the lower edge ofsaid body portion at diametrically opposed points and disposedthroughout at .a permanent inclination with respect to said bodyportioli,each offsaid guide members gradually increasing .in,

width from theupper Vtothe lowerte'rminus thereof and further beingarcuate in cross ing in Width from the upper to the lower termini of themembers and providing entrances for said catching space. 10

In testimony whereof, I affix my signature hereto.

VILLEY P. AUSBROOKS.

